From: Thiebaud Weksteen via tpmdd-devel <tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
To: jeremy-+d1b7ckTlFUdnm+yROfE0A@public.gmane.org
Cc: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Jarkko Sakkinen
<jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
linux-integrity-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: Regression from efi: call get_event_log before ExitBootServices
Date: Wed, 07 Mar 2018 08:41:42 +0000 [thread overview]
Message-ID: <CA+zpnLdSyuyKjJEH3Oowmha2mF0B-j5b4A7CLuXXY7RH47SiFQ@mail.gmail.com> (raw)
In-Reply-To: <01000161fc0b4755-df0621f4-ab5d-479a-b425-adf98427a308-000000-p/GC64/jrecnJqMo6gzdpkEOCMrvLtNR@public.gmane.org>
Hi,
Thanks for testing and sending this report! This patch relies heavily on
the functions exposed by the firmware. My first guess would be that some of
these may not be implemented correctly by the manufacturer.
Could you share more information on this specific device?
Do you have any link to the manufacturer website (I found [1] but it is
based on an ARM CPU)?
Do you have the option to update your firmware? Is a copy of the firmware
available from the manufacturer?
On your side, I assume no error message got displayed on the screen when
booting. Would you be able to try to boot in an UEFI shell [2] and execute
the command "dh -v"?
Thanks,
Thiebaud
[1] https://www.gp-electronic.nl/product/7inchtablet
[2]
https://wiki.archlinux.org/index.php/Unified_Extensible_Firmware_Interface#UEFI_Shell
On Tue, Mar 6, 2018 at 5:00 PM Jeremy Cline <jeremy-+d1b7ckTlFUdnm+yROfE0A@public.gmane.org> wrote:
> Hi folks,
> Commit 33b6d03469b2 ("efi: call get_event_log before ExitBootServices")
> causes my GP-electronic T701 tablet to hang when booting. Reverting the
> patch series or hiding the TPM in the BIOS fixes the problem.
> I've never fiddled with TPMs before so I'm not sure what what debugging
> information to provide. It's got an Atom Z3735G and the UEFI firmware is
> InsydeH20 version BYT70A.YNCHENG.WIN.007.
> Regards,
> Jeremy
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
next prev parent reply other threads:[~2018-03-07 8:41 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-06 16:00 Regression from efi: call get_event_log before ExitBootServices Jeremy Cline
[not found] ` <01000161fc0b4755-df0621f4-ab5d-479a-b425-adf98427a308-000000-p/GC64/jrecnJqMo6gzdpkEOCMrvLtNR@public.gmane.org>
2018-03-07 8:41 ` Thiebaud Weksteen via tpmdd-devel [this message]
2018-03-07 11:16 ` Hans de Goede
2018-03-07 12:00 ` Javier Martinez Canillas
2018-03-07 17:33 ` Jeremy Cline
2018-03-08 8:45 ` Thiebaud Weksteen
2018-03-08 18:20 ` Jeremy Cline
[not found] ` <e7c2be5c-cf21-fc2d-efda-d9222d93ffad@redhat.com>
[not found] ` <b32f335c-0d77-1749-f7fe-65f512280255@redhat.com>
[not found] ` <ade378f6-c997-1d48-a30d-cceee6435fc8@redhat.com>
[not found] ` <a3b5f822-f8f4-e2f5-46da-e23e13174f28@redhat.com>
2018-03-08 16:50 ` Hans de Goede
2018-03-08 17:26 ` Jeremy Cline
2018-03-09 9:29 ` Hans de Goede
2018-03-09 10:43 ` Thiebaud Weksteen
2018-03-09 16:54 ` Jeremy Cline
2018-03-10 10:45 ` Thiebaud Weksteen
2018-03-12 10:17 ` Jarkko Sakkinen
2018-03-12 10:41 ` Paul Menzel
2018-03-16 13:01 ` Jarkko Sakkinen
2018-03-12 11:08 ` Ard Biesheuvel
2018-03-12 14:30 ` Jeremy Cline
2018-03-12 14:56 ` Ard Biesheuvel
2018-03-12 17:01 ` Jeremy Cline
2018-03-12 17:30 ` Ard Biesheuvel
2018-03-12 18:29 ` Thiebaud Weksteen
2018-03-12 18:33 ` Jeremy Cline
2018-03-12 19:55 ` Thiebaud Weksteen
2018-03-12 21:02 ` Ard Biesheuvel
2018-03-13 7:24 ` Thiebaud Weksteen
2018-03-13 8:08 ` Hans de Goede
2018-03-13 1:50 ` Jeremy Cline
2018-03-13 7:47 ` Hans de Goede
2018-03-13 7:59 ` Ard Biesheuvel
2018-03-13 8:02 ` Ard Biesheuvel
2018-03-13 10:23 ` Thiebaud Weksteen
2018-03-13 10:30 ` Ard Biesheuvel
2018-03-13 13:41 ` Jeremy Cline
2018-03-13 13:43 ` Ard Biesheuvel
2018-03-13 15:00 ` Thiebaud Weksteen
2018-03-13 12:51 ` Andy Shevchenko
2018-03-12 18:30 ` Jeremy Cline
2018-03-09 17:03 ` James Bottomley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CA+zpnLdSyuyKjJEH3Oowmha2mF0B-j5b4A7CLuXXY7RH47SiFQ@mail.gmail.com \
--to=tpmdd-devel-5nwgofrqmnerv+lv9mx5uipxlwaovq5f@public.gmane.org \
--cc=hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org \
--cc=jeremy-+d1b7ckTlFUdnm+yROfE0A@public.gmane.org \
--cc=linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-integrity-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=tweek-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).